Item Relisted! FS/FT Spikes lower with .300 blackout and or 6.5 Grendel upper

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Oct 19, 2017
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Today I have a Spikes Lower and two complete uppers. One is a .300 Blackout and the other is a 6.5 Grendel. I just finished the Grendel and haven’t shot either except sighting them in. The two hand rails together in the pictures are for the .300. Really just want to see what kind of offers are on the table. Only selling the Spikes lower does me no good so either a full set up, cash or I’ll do both uppers with lower receiver for money or an upgraded AR-15. As far as money goes, I’m more looking at trades so $1,500 will be my starting price for both uppers and lower.

Item Description: I have an almost brand new Spikes Tactical AR-15 300 Blackout or 6.5 Grendel (I have two interchangeable uppers)
Barrel Material: 300 blackout- 1
Barrel Profile: A2 Style
Chamber: .300 Blackout and/or 6.5 Grendel
Twist Rate: 300 Blackout Aero 18” 1:7 and/or 6.5 Grendel Aero Fluted Stainless Steel 20” 1:8
Extension: M4
Gas System: Rifle-Length
Gas Block Type: Low-profile 5 position click switch adjustable gas block
Upper Receiver: Spikes Tactical ST-15
Receiver Style: Multi-Caliber
Receiver Finish: Hardcoat Anodized
Forward Assist: Yes
Dust Cover: Yes
Handguard Type: PSA 15" M-Lok Free Float Rail with Anti-slip and anti-rotation features
Bolt Carrier Group:
Staked Gas Key: Yes
Lower Receiver: Forged 7075 T6 Aluminum
Receiver Finish: Hardcoat Anodized
Fire Control Group: Ambidextrous Safety
Buffer Tube: 7075 T6 Aluminum
Adjustment: 6-position telescoping stock
Stock: Magpul CTR, Black
Grip: Magpul Black MOE Grip
Magazine: 30 Round PMAG and 3 Metal 30 round clips

  • Lower Includes relief cuts for a broader compatibility with 300 and 6.5 Grendel’s BCG's
  • Twice Staked Castle Nuts
  • 5 Position Adjustable Click Switch Gas Block
  • Extra Power Extractor Springs
  • 7075 T6 Charging Handle Included in all uppers
  • Black Nitride Gas Tube
  • Barrel Nuts properly torqued to military specifications
  • Anti-slip and anti-rotation handguards


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